http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10899690-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_35c163b846f1e43382aeed8dd7bad2a8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K5-045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2205-126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C21-18 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K5-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-38 |
| filingDate | 2016-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d9c579bb87a25c29cb7b7f0f4bd9f6f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bb152292f40fbc06a8f57397e556d9f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08714d19bb8a5ab19ede230352db2e22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9fb6db1f6b5ed847bb6e475bd5630b49 |
| publicationDate | 2021-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-10899690-B2 |
| titleOfInvention | Method for purifying 1,1,1,2,2-pentafluoropropane and method for preparing 2,3,3,3-tetrafluoro-1-propene |
| abstract | The invention relates to a method for purifying 1,1,1,2,2-pentafluoropropane (245cb) using a first composition comprising 1,1,1,2,2-pentafluoropropane and at least one of the compounds selected from the group consisting of 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), cis-1,3,3,3-tetrafluoro-1-propene (1234ze-Z), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-10 pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf), said method comprising the steps of: a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; b) extractive distillation of said second composition in order to form i) a third composition comprising said organic extraction agent and said at least one of the compounds selected from the group consisting of 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), cis-1,3,3,3-tetrafluoro-1-propene (1234ze-Z), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf); and ii) a stream comprising the 1,1,1,2,2-pentafluoropropane; and c) recovery and separation of said third composition. The invention also relates to a method for producing 1234yf including the method for purifying 1,1,2,2-pentafluoropropane. |
| priorityDate | 2015-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 200.